Press Release: Michigan Gas Utilities Corporation and Minnesota Energy Resources Corporation to use NMT Corporation’s FAAR® 3 for GIS Access

La Crosse, WI - October 3, 2006 — NMT Corporation announced today that Michigan Gas Utilities Corporation (MGUC) and Minnesota Energy Resources Corporation (MERC) will provide NMT’s FAAR (Field Access to Automated Records) workforce automation software to network users in both organizations. Both companies will expand use of the software to field personnel later this year. The FAAR software is being provided as part of an unlimited-use license purchased by MGUC and MERC parent company Wisconsin Public Service Corporation.

“Implementing FAAR at MGUC and MERC was a business decision based on the product’s history of success at Wisconsin Public Service Corporation (WPSC) and Upper Peninsula Power Company (UPPCO),” said Dave Perron, MERC Operations Manager, Rosemount, MN.

FAAR replaces paper maps in the field at both organizations and provides an easy-to-use, fast and powerful interface for locating and analyzing map-based data and related information. FAAR can also be configured to provide single point access to multiple data sources, such as CAD, CIS and document management, and can be integrated directly with applications like work and outage management.

“FAAR has been instrumental in consistently meeting our goals of increasing productivity, safety and customer service,” said Lynn Allen, Supervisor of GIS Services at WPS. “We are confident that Michigan Gas Utilities Corporation and Minnesota Energy Resources Corporation will realize the same benefits.”

“The decision to make an investment in large-scale, digital map distribution and data access demonstrates the importance that workforce automation plays in today’s competitive market,” said Joe Linzmeyer, NMT’s Director of GIS Software Sales.

About MGUC and MERC

Michigan Gas Utilities Corporation and Minnesota Energy Resources Corporation are subsidiaries of WPS Resources Corporation and provide natural gas service to 162,000 southern Michigan customers and 199,000 Minnesota customers. WPS, a subsidiary of WPS Resources Corporation (NYSE: WPS), is a regulated electric and natural gas utility which serves 530,000 electric and natural gas customers in Central & Northeastern Wisconsin. UPPCO, a subsidiary of WPS, serves over 50,000 customers in a 4,500 square mile area of Michigan’s Upper Peninsula.

About NMT Corporation

NMT has been providing mobile and network GIS viewing software and engineering data distribution services to electric, natural gas, and telephone utilities since 1987. For more information visit the NMT Website www.nmt.com, e-mail to sales@nmt.com or call (800) 236-0851, ext. 118.